JP6012229B2 - Telemeter measurement system for rotating machinery - Google Patents

Description

  The present invention relates to a telemeter measurement system for a rotary machine that is used for measuring vibration stress generated in a rotor blade in a rotary machine having a rotor blade such as a steam turbine or a gas turbine.

  In a typical steam turbine, a rotor, which is a rotating shaft, is rotatably supported by a casing, a rotor blade is provided on the outer periphery of the rotor, a stator blade is provided in the casing, and the rotor blade and the stator are provided in a steam passage. A plurality of wings are alternately arranged. Therefore, the rotor can be rotationally driven through the moving blades by the steam flowing through the moving blades and the stationary blades.

  In such a rotating machine such as a steam turbine, when measuring the vibration stress generated in the moving blade, a sensor such as a strain gauge is attached to the moving blade, and the rotation side signal is transmitted wirelessly using a telemeter transmitter. There is a technique in which vibration stress generated in a moving blade is measured by transmitting to a stationary telemeter receiver (see Patent Document 1 and Patent Document 2).

JP-A-8-210929 JP 2000-137890 A

  In general, since the sensor and the telemeter transmitter require electric power, a primary battery for supplying electric power to the sensor and the telemeter transmitter is provided. However, the primary battery is consumed and needs to be replaced. Will be limited.

  An object of the present invention is to solve the above-described problems, and to provide a telemeter measurement system for a rotating machine capable of extending a continuous measurement time for detecting the state of the moving blade in a rotating machine having a moving blade. To do.

  In order to achieve the above object, a telemeter measurement system for a rotating machine is provided in a rotating body that is rotatably supported by a stationary member and includes a rotor disk and a moving blade attached to the rotor disk. A sensor for detecting a state; a transmission unit provided in the rotating body for transmitting a detection signal of the sensor as wireless information; and provided in the rotating body for supplying power to the sensor and the transmission unit. A secondary battery; a charging unit provided in the rotating body for supplying power for charging the secondary battery; and a receiving unit provided in the stationary member for receiving the wireless information. And

  In this telemeter measurement system for a rotating machine, even if the secondary battery is consumed, the charging means charges the secondary battery to supply power to the sensor and the transmitter. For this reason, the telemeter measurement system of the rotating machine can extend the continuous measurement time for detecting the state of the moving blade.

  In the present invention, the charging unit includes a power transmission unit including a power transmission coil in the stationary member, and a power reception unit including a power reception coil in the rotating body, and the power reception unit is configured to transmit the power by non-contact power transmission. It is preferable that the secondary battery is charged with power received from the coil to the power receiving coil.

  Since the moving blades of the rotating machine rotate during driving, the sensor and the transmission unit are attached to the rotating body. The charging means described above can charge the secondary battery by transmitting the power on the stationary member side by non-contact power transmission. For this reason, it is not necessary to provide a mechanism for wiring that transmits electric power to the rotating body, and the reliability of the rotating body can be improved. If the sensor and the transmission unit are always supplied with the power received by the power receiving coil, the stability of the power source can be ensured by using it together with the power of the secondary battery.

  In this invention, it is preferable that the arrangement position of the said coil for power transmission and the coil for power reception is the same distance from the rotating shaft of the said rotary body.

  By increasing the number of rotating machines to which power transmission coils and power reception coils having the same distance are added, the types of power transmission coils and power reception coils can be reduced, so that the design of the telemeter measurement system is not required each time, and costs can be reduced. .

  In the present invention, it is preferable that the power transmission coil and the power reception coil are divided in a rotational circumferential direction of the rotating body, and a plurality of conductors are wound thereon.

  With this structure, since the power transmission coil and the power reception coil can be wound so as to extend along the circumferential direction of the rotor disk, the coils are relatively large, and the power transmission coil and the power reception coil are not in contact with each other. Can extend the transmission distance of power.

  In the present invention, it is preferable that the power reception unit charges the secondary battery with electric power received from the power transmission coil to the power reception coil by non-contact power transmission by electromagnetic resonance.

  Thereby, the transmission distance of electric power can be extended in the state where the power transmission coil and the power reception coil are not in contact with each other.

  In the present invention, the charging unit includes: a power transmission unit including a light emitting element that emits light in the stationary member; and a power reception unit including a photodiode that receives the light and generates power in the rotating body, and the power reception unit Preferably, the secondary battery is charged with electric power generated by the photodiode.

  Since the moving blades of the rotating machine rotate during driving, the sensor and the transmission unit are attached to the rotating body. The charging means described above can charge the secondary battery by transmitting the power on the stationary member side through light. For this reason, it is not necessary to provide a mechanism for wiring that transmits electric power to the rotating body, and the reliability of the rotating body can be improved. If the sensor and the transmitter are constantly supplied with the power generated by the photodiode, the sensor and the transmitter can be used together with the power of the secondary battery to ensure the stability of the power source.

  In the present invention, the charging unit includes a power receiving unit provided in the rotating body with a thermoelectric conversion element that generates electric power by receiving heat of the rotating body, and the power receiving unit uses the electric power generated by the thermoelectric conversion element. It is preferable to charge the secondary battery.

  Since the moving blades of the rotating machine rotate during driving, the sensor and the transmission unit are attached to the rotating body. Without receiving power from the stationary side, the charging means generates heat by the thermoelectric conversion element receiving heat around the rotating body, and charges the secondary battery with electric power generated by the thermoelectric conversion element. For this reason, it is not necessary to provide a mechanism for wiring that transmits electric power to the rotating body, and the reliability of the rotating body can be improved. If the sensor and the transmission unit are always supplied with the power generated by the thermoelectric conversion element, the sensor and the transmission unit can be used together with the power of the secondary battery to ensure the stability of the power source.

  ADVANTAGE OF THE INVENTION According to this invention, in the rotary machine which has a moving blade, the telemeter measurement system of the rotary machine which can extend the continuous measurement time which detects the state of a moving blade can be provided.

FIG. 1 is a schematic configuration diagram of a steam turbine. FIG. 2 is an explanatory diagram illustrating the telemeter measurement system according to the first embodiment. FIG. 3 is a partially enlarged view of FIG. FIG. 4 is a block diagram illustrating a configuration of the telemeter measurement system according to the first embodiment. FIG. 5 is a schematic configuration diagram of a power transmission coil or a power reception coil. FIG. 6 is a block diagram illustrating a configuration of a telemeter measurement system according to a modification of the first embodiment. FIG. 7 is an explanatory diagram illustrating a telemeter measurement system according to the second embodiment. FIG. 8 is a block diagram illustrating a configuration of a telemeter measurement system according to the second embodiment. FIG. 9 is an explanatory diagram for explaining a telemeter measurement system according to the third embodiment. FIG. 10 is a block diagram illustrating a configuration of a telemeter measurement system according to the third embodiment. FIG. 11 is a configuration diagram illustrating a configuration of the thermoelectric conversion element of the third embodiment.

  DESCRIPTION OF EMBODIMENTS Embodiments (embodiments) for carrying out the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment, and when there are two or more embodiments, what comprises combining each embodiment is also included. The constituent elements described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the constituent elements described below can be appropriately combined.

(Embodiment 1)
FIG. 1 is a schematic configuration diagram illustrating a steam turbine according to the first embodiment. In Embodiment 1, a steam turbine will be described as an example of a rotating machine.

  In the steam turbine 10 of the first embodiment, as shown in FIG. 1, a casing 11 that is a stationary member has a hollow shape, and a rotor 12 as a rotating body is rotatably supported by a plurality of bearings 13. In the rotor 12, a moving blade 15 is fixed to the outer peripheral portion of the rotor 12 via a rotor disk 14. In this case, the moving blades 15 are provided in a plurality of stages at predetermined intervals in the axial direction of the rotor 12. Further, the casing 11 is positioned between the plurality of stages of moving blades 15 and a plurality of stages of stationary blades 16 are fixed thereto. In the casing 11, a steam passage 17 is formed in a passage in which the moving blade 15 and the stationary blade 16 are disposed, a steam supply port 18 and a steam discharge port 19 are provided, and the casing 11 communicates with the steam passage 17. Yes.

  Accordingly, when the steam is supplied from the steam supply port 18 to the steam passage 17, the steam passes through the plurality of blades 15 and the stationary blades 16, so that the rotor 12 is driven and rotated via each blade 15. The steam driving the rotor blade 15 while driving the generator (not shown) connected to the rotor 12 is converted into static pressure by an exhaust diffuser (not shown) and then released from the steam outlet 19 to the atmosphere. .

  FIG. 2 is an explanatory diagram illustrating the telemeter measurement system according to the first embodiment. FIG. 3 is a partially enlarged view of FIG. FIG. 4 is a block diagram illustrating a configuration of the telemeter measurement system according to the first embodiment. In the rotary machine such as the steam turbine 10 described above, when the vibration stress generated in the moving blade 15 is measured, a sensor 40 for detecting the state of the moving blade such as a strain gauge is attached to the moving blade 15 to measure the telemeter. Using the system 1, the signal of the sensor 40 on the rotor 12 side is transmitted as wireless information to the control unit 8 on the stationary member 16 </ b> A side, and for example, the vibration stress generated in the moving blade 15 is measured. As shown in FIG. 2, the stationary member 16 </ b> A is positioned in the vicinity of the rotor 12 including the moving blade 15 in a non-contact manner with the rotor 12 and is positioned as a part of the casing 11 described above.

  As shown in FIGS. 2, 3, and 4, the telemeter measurement system 1 includes a sensor 40, a transmission unit 2, a transmission antenna 3, a secondary battery 4, a charging unit 5, a reception unit 6, and reception. An antenna 7 and a control unit 8 are included. The sensor 40 is a strain gauge attached to the moving blade 15, and the wiring is transmits a detection signal corresponding to the vibration stress of the moving blade 15 detected by the sensor 40 to the transmission unit 2. The sensor 40 may be a thermocouple attached to the moving blade 15.

  The transmission unit 2 uses the detection signal of the sensor 40 as wireless information iw. The transmission unit 2 is a telemeter transmitter that transmits the wireless information iw to the reception unit 6 via the transmission antenna 3. The receiving unit 6 is a telemeter receiver that receives via the receiving antenna 7, and sends the wireless information iw to the control unit 8. The power of the secondary battery 4 is supplied to the sensor 40 and the transmission unit 2 described above via the power line Pw.

  The control unit 8 includes a microprocessor centered on a CPU (Central Processing Unit), a ROM (Read Only Memory) that stores a processing program in addition to the CPU, and a RAM (Random Access Memory) that temporarily stores data. ) And a storage device serving as storage means. The control unit 8 extracts the detection signal of the sensor 40 included in the wireless information iw and stores it in the storage unit. The control unit 8 preferably includes display means 8A, and the display means 8A displays the detection signal of the sensor 40.

  The charging unit 5 according to the first embodiment includes a power transmission unit 52 including the stationary member 16A illustrated in FIG. 2 including the power transmission coil L1, a power receiving unit 51 including the rotor 12 including the power reception coil L2, and a power source 53. The power transmission unit 52 is controlled by the control unit 8 described above. As shown in FIG. 4, the power transmission coil L1 and the power reception coil L2 constitute non-contact power transmission means 54 that transmits power in a non-contact manner by electromagnetic induction.

  FIG. 5 is a schematic configuration diagram of a power transmission coil or a power reception coil. As shown in FIGS. 2 and 3, the power transmission coil L1 and the power reception coil L2 are disposed on the side surface of the rotor disk 14 and the stationary member 16A, respectively, and the power transmission coil L1 and the power reception coil L2 are opposed to each other. Has been.

  The arrangement positions of the power transmission coil L1 and the power reception coil L2 are the same distance r1 from the rotation axis Zr of the rotor disk 14 as shown in FIG. 3, and from the direction parallel to the rotation axis Zr as shown in FIG. Thus, it extends in the circumferential direction and is disposed so as to surround the rotation axis Zr. As the distance r1, it is more preferable to select a radial position that can correspond to the diameter of the rotor disk 14 of various rotating machines. For this reason, since the types of the power transmission coil L1 and the power receiving coil L2 can be reduced by increasing the number of rotating machines to which the power transmitting coil L1 and the power receiving coil L2 having the same distance r1 are attached, the design of the telemeter measurement system 1 is performed each time. It becomes unnecessary, and the cost can be suppressed.

  As shown in FIG. 3, it is preferable that the transmission part 2 and the secondary battery 4 are arrange | positioned inside the balance hole 14a. The balance hole 14a is a recess of the rotor disk 14 at a distance r2 having a radius different from the distance r1 described above. The balance hole 14a is a recess in which a weight that suppresses the rotational vibration of the rotor 12 can be arranged. By arranging the transmitter 2 and the secondary battery 4 in this recess, the transmitter 2 and the secondary battery 4 are rotors. Protruding to the end of the disk 14 can be suppressed. And when the transmission part 2 and the secondary battery 4 are arrange | positioned inside the balance hole 14a, possibility that the transmission part 2 and the secondary battery 4 will fail by rotation of the rotor 12 can be suppressed.

  As shown in FIG. 5, the power transmission coil L <b> 1 and the power reception coil L <b> 2 are divided in the circumferential direction of the rotor disk 14, and a plurality of conductors 57 are wound around a magnetic core 56. For example, the coil half body 55A and the coil half body 55B are disposed so as to surround the rotation axis Zr. For this reason, the power transmission coil L1 and the power reception coil L2 can be easily installed around the rotation axis Zr of the rotor 12. Since the power transmission coil L1 and the power reception coil L2 can be wound so as to extend along the circumferential direction of the rotor disk 14, the coils can be made relatively large and the transmission distance of power can be extended.

  As shown in FIG. 4, based on the control command of the control unit 8, the power transmission unit 52 receives the power of the power source 53 from the power transmission line PA and causes a current to flow through the power transmission coil L <b> 1. A magnetic field is generated around the power transmission coil L1, electromagnetic induction that changes the magnetic flux passing through the power reception coil L2 is generated, and a current flows through the power reception coil L2. Thus, in the non-contact power transmission means 54, the power receiving coil L2 receives power by the electromotive force received from the power transmitting coil L1. The power receiving unit 51 includes a charging circuit, and charges the secondary battery 4 by sending the power received by the power receiving coil L2 to the wiring Pc.

  Since the rotor blade 15 of the steam turbine 10 that is a rotating machine rotates during driving, the sensor 40 and the transmitter 2 are attached to the rotor 12. The charging means 5 described above can charge the secondary battery 4 by transmitting the power of the stationary member 16A by non-contact power transmission. For this reason, it is unnecessary to provide a mechanism for wiring that transmits electric power to the rotor 12, and the reliability of the rotor 12 can be improved. The sensor 40 and the transmitter 2 can ensure the stability of the power source by using the power received by the power receiving coil L2 at all times together with the power of the secondary battery 4.

  As described above, the telemeter measurement system 1 according to the first embodiment includes the sensor 40, the transmission unit 2, the secondary battery 4, the charging unit 5, and the reception unit 6. The sensor 40 detects the state of the moving blade 15. The transmission unit 2 transmits the detection signal of the sensor 40 as the wireless information iw. The secondary battery 4 supplies power to the sensor 40 and the transmission unit 2. The charging unit 5 supplies power for charging the secondary battery 4. The receiving unit 6 is provided in the stationary member 16A and receives the wireless information iw. In the telemeter measurement system 1 of the rotating machine, even when the secondary battery 4 is consumed, the charging unit 5 charges the secondary battery, thereby supplying power to the sensor 40 and the transmission unit 2. For this reason, the telemeter measurement system 1 of the rotating machine can extend the continuous measurement time for detecting the state of the moving blade 15.

(Modification)
FIG. 6 is a block diagram illustrating a configuration of a telemeter measurement system according to a modification of the first embodiment. The same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description is omitted. In the telemeter measurement system 1A according to the modification of the first embodiment, the non-contact power transmission unit 54A performs non-contact power transmission by electromagnetic resonance.

  The charging unit 5 according to the modification of the first embodiment includes a power transmission unit 52 including the stationary member 16A illustrated in FIG. 2 including the power transmission coil L1A and the capacitor C1, and the power receiving unit 51 including the rotor 12 including the power reception coil L2A and the capacitor C2. And a power source 53. As shown in FIG. 6, the power transmission coil L1A, the capacitor C1, the power reception coil L2A, and the capacitor C2 constitute non-contact power transmission means 54A that transmits power in a non-contact manner by magnetic resonance.

  Based on the control command of the control unit 8, the power transmission unit 52 receives the power of the power source 53 from the transmission line PA, and the power transmission coil L1A and the capacitor C1 vibrate the surrounding magnetic field. The power receiving coil L2A and the capacitor C2 having the same resonance frequency as the vibration of the magnetic field around the power transmitting coils L1A and C1 resonate and a current flows through the power receiving coil L2A. Thus, since the resonance frequency of the resonance circuit including the power transmission coil L1A and the capacitor C1 is the same as that of the resonance circuit including the power reception coil L2A and the capacitor C2, the non-contact power transmission unit 54 performs electromagnetic resonance. The power receiving coil L2A receives power. The power receiving unit 51 charges the secondary battery 4 by sending the power received by the power receiving coil L2A to the wiring Pc.

  The power receiving unit 51 charges the secondary battery 4 with power received by the L2A from the power transmission coil L1A to the power reception coil by non-contact power transmission by electromagnetic resonance. Thereby, the transmission distance of electric power can be extended in the state which the coil L1A for power transmission and the coil L2A for power reception are mutually non-contact. For example, the charging unit 5 according to the modification of the first embodiment can increase the transmission distance compared to the charging unit 5 according to the first embodiment.

(Embodiment 2)
FIG. 7 is an explanatory diagram illustrating a telemeter measurement system according to the second embodiment. FIG. 8 is a block diagram illustrating a configuration of a telemeter measurement system according to the second embodiment. The same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description is omitted. In the telemeter measurement system 1B according to the second embodiment, the power receiving unit 51 charges the secondary battery 4 with power generated by the photodiode 51a by light.

  The charging unit 5 according to the second embodiment includes a power transmission unit 52 including a light emitting element 52a that emits light to the stationary member 16A illustrated in FIG. 7 and a power reception unit 51 including a photodiode 51a that receives light from the rotor 12 and generates electric power. And a power source 53. The power transmission unit 52 is controlled by the control unit 8 described above. The light emitting element 52a is, for example, a light emitting diode.

  As shown in FIG. 7, the light emitting element 52a and the photodiode 51a are arranged on the outer peripheral surface of the rotor disk 14 and the stationary member 16A, respectively, and the light emitting element 52a and the photodiode 51a are arranged facing each other. The light emitting element 52a and the photodiode 51a may be disposed on the side surface of the rotor disk 14 and the stationary member 16A, respectively, and the light emitting element 52a and the photodiode 51a may be disposed to face each other.

  As shown in FIG. 8, based on the control command of the control part 8, the power transmission part 52 receives the electric power of the power supply 53 from the power transmission line PA, and sends an electric current through the light emitting element 52a. Light is generated around the light emitting element 52a, and a current flows through the photodiode 51a that has received the light. As described above, in the telemeter measurement system 1B according to the second embodiment, the photodiode 51a is generated by the light emitted from the light emitting element 52a, and the power receiving unit 51 receives the power. The power receiving unit 51 charges the secondary battery 4 by sending the power generated by the photodiode 51 a to the wiring Pc.

  The charging unit 5 according to the second embodiment includes a power transmission unit 52 that includes a light emitting element 52a that emits light in the stationary member 16A, and a power reception unit 51 that includes, in the rotor 12, a photodiode 51a that receives light from the light emitting element 52a and generates electric power. The power receiving unit 51 charges the secondary battery 4 with power generated by the photodiode 51a.

  The charging unit 5 according to the second embodiment can charge the secondary battery 4 by transmitting power on the stationary member 16A side through light. For this reason, it is unnecessary to provide a mechanism for wiring that transmits electric power to the rotor 12, and the reliability of the rotor 12 can be improved. The sensor 40 and the transmitter 2 can ensure the stability of the power source by using the power generated by the photodiode 51a at all times and using it together with the power of the secondary battery 4.

(Embodiment 3)
FIG. 9 is an explanatory diagram for explaining a telemeter measurement system according to the third embodiment. FIG. 10 is a block diagram illustrating a configuration of a telemeter measurement system according to the third embodiment. FIG. 11 is a configuration diagram illustrating a configuration of the thermoelectric conversion element of the third embodiment. The same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description is omitted. The telemeter measurement system 1C according to the third embodiment charges the secondary battery 4 with electric power generated by the thermoelectric conversion element 51b.

  As illustrated in FIGS. 9 and 10, the charging unit 5 according to the third embodiment includes a power receiving unit 51 including a thermoelectric conversion element 51 b that generates power by receiving heat around the rotor 12. With this structure, the power of the power source 53 outside the rotor 12 is not required.

  As shown in FIG. 11, the thermoelectric conversion element 51 b includes an n-type thermoelectric conversion unit 91 that is an n-type semiconductor having a low thermal conductivity, and a p-type thermoelectric conversion unit 92 that is a p-type semiconductor. The n-type thermoelectric conversion unit 91 and the p-type thermoelectric conversion unit 92 are made of a thermoelectric conversion material. An electrode 93 common to the two thermoelectric conversion units 91 and 92 is connected to the upper end surfaces of the n-type thermoelectric conversion unit 91 and the p-type thermoelectric conversion unit 92 that are juxtaposed. On the other hand, independent electrodes 94a and 94b are connected to the lower end surfaces of the n-type thermoelectric converter 91 and the p-type thermoelectric converter 92, respectively.

  The heat of the steam that drives the moving blade 15 shown in FIG. 9 heats the electrode 93 of the thermoelectric conversion element 51b. In the thermoelectric conversion element 51b shown in FIG. 11, when the electrode 93 is heated, the p-type thermoelectric conversion unit 92 is transferred from the n-type thermoelectric conversion unit 91 by carriers thermally excited between the electrode 93 and the electrodes 94a and 94b. Becomes a high potential. When the power receiving unit 51 serving as a load is connected between the electrodes 94a and 94b, a current flows from the p-type thermoelectric conversion unit 92 to the n-type thermoelectric conversion unit 91 side.

  The charging unit 5 according to the third embodiment includes a power receiving unit 51 provided in the rotor 12 with a thermoelectric conversion element 51b that generates electric power by receiving heat from the rotor 12, and the power receiving unit 51 has 2 electric power generated by the thermoelectric conversion element 51b. The secondary battery 4 is charged.

  As shown in FIG. 10, in the telemeter measurement system 1 </ b> C according to the third embodiment, the thermoelectric conversion element 51 b receives the heat around the rotor 12 to generate power, and the power receiving unit 51 receives power. The power reception unit 51 charges the secondary battery 4 by sending the power generated by the thermoelectric conversion element 51b to the wiring Pc. Since the telemeter measurement system 1 </ b> C according to the third embodiment charges the secondary battery 4 using the exhaust heat of the steam turbine 10, energy efficiency can be increased. For this reason, it is unnecessary to provide a mechanism for wiring that transmits electric power to the rotor 12, and the reliability of the rotor 12 can be improved. The sensor 40 and the transmitter 2 can ensure the stability of the power source by using the electric power generated by the thermoelectric conversion element 51b at all times and using the electric power of the secondary battery 4 together.

  In each of the above-described embodiments, the telemeter measurement systems 1, 1 </ b> A, 1 </ b> B, and 1 </ b> C have been described as being applied to the steam turbine 10, but provided with a rotor including a rotor disk and a moving blade attached to the rotor disk. The present invention can also be applied to a rotating machine such as a combined power generation system in which a gas turbine, a compressor, a gas turbine, and a steam turbine are combined.

1, 1A, 1B, 1C Telemeter measurement system 2 Transmitter 3 Transmitting antenna 4 Secondary battery 5 Charging means 6 Receiving section 7 Receiving antenna 8 Control section 8A Display means 10 Steam turbine 11 Casing 12 Rotor 14 Rotor disk 14a Balance hole 15 Dynamic Blade 16 Stator blade 16A Stationary member 17 Steam passage 18 Steam supply port 19 Steam discharge port 40 Sensor 51 Power receiving unit 51a Photo diode 51b Thermoelectric conversion element 52 Power transmission unit 52a Light emitting element 53 Power supply 54, 54A Non-contact power transmission means 55A, 55B Coil Half body 56 Core 57 Conductor 91 n-type thermoelectric converter 92 p-type thermoelectric converter 93, 94a, 94b Electrode C1, C2 Capacitor L1, L1A Power transmission coil L2, L2A Power reception coil Zr Rotating shaft

Claims (5)

A sensor that is rotatably supported by a stationary member and includes a rotor disk and a rotor blade attached to the rotor disk, and detects a state of the rotor blade;
A transmitter that is provided in the rotor disk and transmits a detection signal of the sensor as wireless information;
A secondary battery provided in the rotor disk for supplying power to the sensor and the transmitter;
A charging means for supplying electric power to charge the pre-Symbol secondary battery,
A receiving unit provided in the stationary member for receiving the wireless information;
Only including,
The charging unit includes a power transmission unit including a power transmission coil in the stationary member, and a power reception unit including a power reception coil in the rotor disk of the rotating body,
The power transmission coil and the power reception coil are arranged to face each other in the axial direction of the rotating body, and the arrangement positions of the power transmission coil and the power receiving coil are the same distance from the rotation axis of the rotary body,
The power reception unit charges the secondary battery with electric power received from the power transmission coil to the power reception coil by non-contact power transmission . The transmitter and the secondary battery are disposed inside a balance hole of the rotor disk, and a position of the balance hole is larger from a rotating shaft of the rotating body than a position of the power receiving coil. Item 12. A telemeter measurement system for a rotary machine according to Item 1 . The power transmission coil and the power receiving coil, said divided into the circumferential direction of rotation of the rotating body, telemeter rotary machine according to claim 1 or claim 2 the plurality of conductors characterized in that it is wound Measuring system. The power transmission coil and the power reception coil are wound around a plurality of magnetic cores, respectively, and one set of the magnetic cores is disposed so as to surround the rotating shaft among the plurality of magnetic cores. Item 4. A telemeter measurement system for a rotary machine according to Item 3 .   The power reception unit charges the secondary battery with the power received from the power transmission coil to the power reception coil by non-contact power transmission by electromagnetic resonance. A telemeter measurement system for a rotary machine according to item 1.

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